O.  Hartman, ?Abyssal polychaetous annelid from the Mozambique Basin off southeast Africa, with a compendium of abyssal polychaetous annelids from world-wide areas?, Journal of the Fisheries Research Board of Canada, vol. 28, pp. 1407-1428, 1971.

O.  Hartman, ?Benthic zonation in Antarctica, as displayed by marine annelids (Polychaeta) based on published and new records, from intertidal to hadal depths?, Proceedings of the Symposium on Pacific-Antarctic Sciences - Jare Scientific reports Special Issue, vol. 1, pp. 192-204, 1967.

O.  Hartman, ?Larval development of benthic invertebrates in Antarctic Seas: Early development of Nothria notialis (Monro) and Paronuphis antarctica (Monro) in Bransfield Strait, Antarctic Peninsula?, Jare Scientific Reports Special Issue Proceedings of the Symposium on Pacific-Antarctic Sciences, vol. 1, pp. 205-208, 1967.

O.  Hartman, ?Polychaetous annelids collected by the USNS Eltanin and Staten Island cruises, chiefly from Antarctic Seas?, Allan Hancock Monographs in Marine Biology, vol. 2, pp. 1-387, 1967.

O.  Hartman, ?Polychaeta Myzostomidae and Sedentaria of Antarctica?, Antarctic Research Series, vol. 7, pp. 1-158, 1966.

O.  Hartman, ?Deep-water benthic polychaetous annelids off New England to Bermuda and other North Atlantic areas?, Allan Hancock Foundation Publications Occasional Papers, vol. 28, pp. 1-378,pl.1-52, 1965.

O.  Hartman, ?Polychaeta Errantia of Antarctica?, Antarctic Research Series, vol. 3, pp. 1-131, 1964.

O.  Hartman, ?Non-pelagic polychaeta of the Swedish Antarctic Expedition 1901?1903?, Further Zoological Results of the Swedish Antarctic Expedition 1901?1903, vol. 4, pp. 1-83, 1953.

O.  Hartman, ?The marine annelids of the United States Navy Antarctic Expedition, 1947-48?, Journal of the Washington Academy of Sciences, vol. 42, pp. 231-237, 1952.

O.  Hartman, ?Biology of the Antarctic Seas. 6. Polychaeta from the Weddell Sea Quadrant, Antarctica?, Antarctic Research Series, vol. 26, pp. 125-223, illustr, 1978.